Geometrie!!!Dau coroana!!!

GeometrieDau Coroana class=

Răspuns :

(CD- bisectoare → m(∡DCB)=1/2 *m(∡ACB)=60°:2=30°
(BD-bisectoare → m(∡DBC)=1/2 * m(∡ABC)=68°:2=34°
m(∡BDC)=180°- m(∡DCB)-m(∡DBC)=180°-30°-34°=116°